Cadence® system design and verification solutions, integrated under our Verification Suite, provide the simulation, acceleration, emulation, and management capabilities.
Verification Suite Related Products A-Z
Cadence® digital design and signoff solutions provide a fast path to design closure and better predictability, helping you meet your power, performance, and area (PPA) targets.
Full-Flow Digital Solution Related Products A-Z
Cadence® custom, analog, and RF design solutions can help you save time by automating many routine tasks, from block-level and mixed-signal simulation to routing and library characterization.
Overview Related Products A-Z
Driving efficiency and accuracy in advanced packaging, system planning, and multi-fabric interoperability, Cadence® package implementation products deliver the automation and accuracy.
Cadence® PCB design solutions enable shorter, more predictable design cycles with greater integration of component design and system-level simulation for a constraint-driven flow.
An open IP platform for you to customize your app-driven SoC design.
Comprehensive solutions and methodologies.
Helping you meet your broader business goals.
A global customer support infrastructure with around-the-clock help.
More Support Log In
24/7 Support - Cadence Online Support
Locate the latest software updates, service request, technical documentation, solutions and more in your personalized environment.
Cadence offers various software services for download. This page describes our offerings, including the Allegro FREE Physical Viewer.
The Cadence Academic Network helps build strong relationships between academia and industry, and promotes the proliferation of leading-edge technologies and methodologies at universities renowned for their engineering and design excellence.
Participate in CDNLive
A huge knowledge exchange platform for academia to network with industry. We are looking for academic speakers to talk about their research to the industry attendees at the Academic Track at CDNLive EMEA and Silicon Valley.
Come & Meet Us @ Events
A huge knowledge exchange platform for academia. We are looking for academic speakers to talk about their research to industry attendees.
Americas University Software Program
Join the 250+ qualified Americas member universities who have already incorporated Cadence EDA software into their classrooms and academic research projects.
EMEA University Software Program
In EMEA, Cadence works with EUROPRACTICE to ensure cost-effective availability of our extensive electronic design automation (EDA) tools for non-commercial activities.
Apply Now For Jobs
If you are a recent college graduate or a student looking for internship. Visit our exclusive job search page for interns and recent college graduate jobs.
Cadence is a Great Place to do great work
Learn more about our internship program and visit our careers page to do meaningful work and make a great impact.
Get the most out of your investment in Cadence technologies through a wide range of training offerings.
Overview All Courses Asia Pacific EMEANorth America
Instructor-led training [ILT] are live classes that are offered in our state-of-the-art classrooms at our worldwide training centers, at your site, or as a Virtual classroom.
Online Training is delivered over the web to let you proceed at your own pace, anytime and anywhere.
Exchange ideas, news, technical information, and best practices.
The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information.
It's not all about the technology. Here we exchange ideas on the Cadence Academic Network and other subjects of general interest.
Cadence is a leading provider of system design tools, software, IP, and services.
I am new to this forum and i have started my career as a layout designer recently.
Iam trying to develop a skill code which gives me the area of a block irrespective of the pdk or technology used.
By using the "bBox" command i am able to get half of my work done. But the problem i am facing is if any space inside the block is left empty even that area is also counted. So i want to eliminate the unused space and get the area of space which is used.
Can please someone help me with this and guide me to correct procedure if my approach is wrong.
Thanks in advance for help
Google the topic "Area of Polygon" or "shoelace formula", it will point you to the right direction.
In theory, Any shape in a cartesian plane, given the coordinates of all vertices, The area can be calculated.
In reply to lawlag02:
This function can be used to find the area of a polygon or rectangle. Not sure if that's exactly what is wanted here though:
* (abArea object) *
* Calculate the area of an object. *
* Currently only works with polygons and rectangles. *
(procedure (abArea object)
(let (sum crd lastPt firstPt crdList area corners ll ur dx dy objType)
(setq objType (dbGetq object objType))
(if (equal objType "polygon")
(setq crdList (dbGetq object points))
(setq sum 0)
(setq firstPt (setq lastPt (car crdList)))
(setq crdList (cdr crdList))
(foreach crd crdList
(setq dx (difference (xCoord crd) (xCoord lastPt)))
(setq sum (plus sum (times dx (plus (yCoord crd) (yCoord lastPt)))))
(setq lastPt crd))
(setq sum (plus sum
(times (difference (xCoord firstPt) (xCoord lastPt))
(plus (yCoord firstPt) (yCoord lastPt)))))
(setq area (times 0.5 (abs sum))))
(when (equal objType "rect")
(setq corners (dbGetq object bBox))
(setq ll (car corners))
(setq ur (cadr corners))
(setq dx (difference (xCoord ll) (xCoord ur)))
(setq dy (difference (yCoord ll) (yCoord ur)))
(setq area (abs (times dx dy))))
In reply to Andrew Beckett:
Thank you guys.
Andrew this code is working in the manner i wanted to. I tried a lot with all the possible ways i knew to convert the obtained values into microns but i can't get it. Is there a possiblity to convert the values to microns?
Thanks in advance for any help
In reply to Sri Charan B:
I assume you don't really mean microns, given that area can't be in microns. You either mean square microns or maybe square metres?
Assuming that your user units in the layout are in microns (which would usually be the case) - the coordinate display in the tool should read out 1um as 1 - then the result of abArea will be in square microns. If you want it in square metres, you'd just multiply the result by 1e-12.
As I said, unless something is unusual, the user units in your layout would typically be in microns (that's certainly the default, and I've not come across many people changing that default), and hence the area returned by abArea will be in square microns, and so would not need any multiplication.
Even if you wanted it in some other units, what's so difficult about doing the multiplication? It's a programming language after all - all you would need to do is:
and then use abAreaInSquareMetres instead. Or change the abArea code to include the multiplication.
I don't understand why that's a problem for you?
Thank You very much Andrew. I got the result as though i wanted. Really your code was very helpful to acheive my goal.